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Proceedings Paper

Fiber optic displacement sensor with signal analysis in spectral domain
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Paper Abstract

In this paper, a study of a low-coherence fiber optic displacement sensor is presented. The sensor consisted of a broadband source whose central wavelength was either at 1310 nm or 1550 nm, a sensing Fabry-Pérot interferometer operating in reflective mode and an optical spectrum analyzer acting as the detection setup. All these components were connected by a single-mode fiber coupler. Metrological parameters of the sensor were investigated for different lengths of the fiber connecting the sensing Fabry-Pérot interferometer (1 m and 10 m). For each length of the fiber, displacement in the range of 0 μm to 500 μm, in increments of 50 μm were measured. Obtained results indicate that the developed sensor is not sensitive to changes in attenuation in the optical path, thus enabling remote measurement of the displacement on long distances while maintaining a satisfactory accuracy.

Paper Details

Date Published: 2 September 2016
PDF: 5 pages
Proc. SPIE 10034, 11th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods, 100340K (2 September 2016); doi: 10.1117/12.2244591
Show Author Affiliations
Katarzyna Karpienko, Gdańsk Univ. of Technology (Poland)
Marcin Marzejon, Gdańsk Univ. of Technology (Poland)
Jerzy Pluciński, Gdańsk Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 10034:
11th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods
Tadeusz Pustelny; Przemyslaw Struk; Pawel Mergo; Jacek Wojtas, Editor(s)

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